Hatch-fastening device.



0. P. PEGKHAM.

HATCH FASTENING DEVICE.

APPLIUATION FILED 00T.31, 1907.

904,275. Patented Nov. 17, 1908.

2 SHEBTS-SHEBT l.

witnesses I 1! nventor 0. P. PEGKHAM.

HATCH FASTENING 1mm.

APPLICATION IILED 00T.31, 1907.

Patented Nov. 17, 1-908.

2 SHEETS-SHEET 2.

' inventor 3 -7- 0m 0; WM

\ Httolncw OBTEN PETERSON PECKHAM, OF RIVER ROUGE, MICHIGAN.

HATCH-FASTENING DEVICE.

Specification Letters Patent.

Patented Nov. 17, 1908.

Application filed October 31, 1907. Serial No. 399,990. K

- of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accom anying drawings, and to the figures of re erence marked thereon, which form a part of this specification.

This invention relates to hatch fasteners, and consists in the construction and arrangement of parts hereinafter more fully set forth and pointed out particularly in the claims.

The primary object of the invention is to provide a simple, strong, and compact hatch fastener adapted to securely fasten the cover of the hatch to the coaming, and wherein the arrangement is such as to enable a plurality of the hatch fastening devices to be operated simultaneously, thereby greatly facilitating the o eration of closing the hatches.

A further object is to provide means for carrying the batten strips against the canvas which. lies against the coaming, simultaneously with the movement which forces the clamping hooks onto the cover of the hatch.

A further object is to provide for moving simultaneously the batten strips common to a plurality of the clamping hooks concurrently with the movement of said hooks when being carried into or out of the clamping position. 4

A further object is to provide means for wedging. the batten strips against the overhanging canvas of the hatch by a continuation of the same movement that brings the clamping hooks into position and to remove the pressure from the batten strips in advance of themovement of the clamping hooks, when it is desired to release the hatch cover. a

The above objects are attained by the structure illustrated in the accompanying drawin%,. in which igure 1 is a plan view of a hatch, parts of which are broken away, showin the application thereto of my improved astening device. Fig. 2 is an elevation of Fig. 1. Fig. 3 is an enlarged sectional view as on line 33 of Figs. 2 and 4, through the side plates'in which the clamping hook is mounted to swing in the arc of a circle, the base of the hook between said plates ap caring in transverse section, together with the vertically movable wedge block, the segmental pinion for actuating said block and said hook appearing in plan. Fig. 4 is a vertical sectional view through the hatch cover, the coaming, the batten strip, and a portion of the deck, showmg in elevation one of my improved hatch fasteners in position to clamp the cover to the coaming. Fig. 5 is a similar view, showing the clamping hook thrown back in position to release the cover of the hatch. Fig. 6 is a View similar to Fig. 4 with the hatch cover omitted and one of the side plates of the hatch fastener removed. Fig. 7 1s a view similar to Fig. 6, showing the position of the parts when the clamping hook is turned outwardly. 1 Fig. 8 is a side elevation of one of the clamping hooks.

Referring to the characters of reference, 1 designates the deck of a vessel in which is formed the usual hatch opening 2, provided with-the surrounding coaming 3. Adapted to cover the coaming for the purpose of closing the hatch o ening is the hatch cover 4 which is prefera bly divided at the center of the hatch and formed of sliding sections, as-

is well understood in the art, and indicated by. dotted lines in Fig. 1.

Adapted to fit over the cover of the hatch and to extend downwardly onto the sides of the coaming is the usual covering of canvas 5. Surrounding the coaming at the top is a strengthening bar of angle iron 6, which is also embraced by the canvas cover, the margin of the canvas lying against the face of the coaming below said angle iron. The clamping hooks 7 which are employed to clamp the cover to the ,top of the coaming and to secure the canvas in place thereover extend longitudinally of the coaming on each side of the hatch and also across the ends of the coaming, the number of clamping hooks employed being suflicient to main tain the hatch cover securely in place. Associated with each of said hooks and operating in conjunction therewith are the parts which form the hook actuating and hatch fastening devices, said parts consisting of the opposed side plates 8 having the laterally projecting foot portions 9 which are riveted or otherwise suitably secured to the face of the coaming. Formed through the central portion of each of the plates 8-is a circular aperture 10. The shank or bottom portion trunnions 14 which project into and are journaled in the circular apertures 10 in the side plates 8, whereby said pinion becomes rotatively mounted within the opening in the base of the hook. Occupying the rectangular portion of the opening in the hook is a longitudinally movable wedge block 15 having rack teeth on one edge thereof which mesh with the teeth of the segmental pinion and having the outer beveled face 16 above the rack teeth thereon. The enlarged base portion of the hook extends vertically from between the side plates so that the upper port-ion of the rectangular opening 12 therein projects above the upper margins of said ,plates, the arcs of which are cut away on the side towards the coaming to form the inclined shoulders 17 with which the beveled face 16 of the wedge block is adapted to engage for purposes hereinafter explained. It will be noted that the upper portion 18 of the wedge block is of greater thickness than the body portion thereof and that said thickened portion projects on each side of said block into the plane of the side plates 8 through the opening 12 in the hook. It will further be noted that the central opening through the hook where it embraces the pinion 13 is of greater diameter than said pinion permitting the base of the hook to move laterally as well as to rotate upon the support afforded by said pinion. The pinions for a plurality of hooks are rotated by means of a square shaft 19 passing therethrough and common to any desired number of said pinions. The batten strip 20 is securedto the inwardly projecting por tion 21 of the hooks and. is common to a plurality thereof, said strip being carried with the hooks during their movement.

'hen it is desired to fasten the hatch the cover placed in position thereon and the canvas thrown over the cover so as to depend around the sides and ends of the coaming. A crank 22 is applied to one end of the square shaft 19 and said shaft rotated to throw the hooks 7 thereon inwardly and cause them to engage over the cover, as shown in Fig. 1. When the hooks shall have reached a vertical position, it will be noted that the upper ends of the wedge blocks will stand in alinement with the inclined shoulders lZ of the plates 8 so that a further rotation of the shaft will cause the pinions 13 to draw the wedge blocks 15 downwardly carrying the inclined faces 16 of said blocks against the inclined shoulders 17, thereby crowding the straight faces of said wedge blocks against the straight side of the opening in the hooks in which said blocks lie and forcing said hooks inwardly so as to carry the batten strips mounted thereon forcibly against the'canvas which lies against the vertical face of the coaming, as clearly shown in Fig. 4, iii-which position the hooks are not only held firmly on the cover to retain it in place but the batten strips are caused to bear with a great deal of pressure against the canvas, insuring the firm retention thereof between the batten strip and the face of the coaming. It will be noted that the wedge blocks not only serve to crowd the batten strip against the canvas and coaming, but also lock the hooks in a vertical position because of the fact that while the beveled faces of the wedge blocks bear against the inclined shoulders of the plates, the hooks cannot be turned outwardly to the position shown in Figs. 5 and 7, as said wedge blocks lock the hooks against such movement..

T 0 release the hooks and turn them outwardly to the position shown in Fig. 5 to allow of the removal of thecanvas and hatch cover, the square shaft 19 by means of the crank 22, or other suitable means, is rotated in the opposite direction, or to the right. The initial movement of said shaft to the right first turns the pinions 13 and raises the wedge blocks so as to free their beveled faces from the inclined shoulders of the plates 8 and carry their upper ends into contact with the terminal of the opening 12 in said hooks, when a further rotation of said shaft will swing the hooks outwardly, as shown in Figs. 5 and 7. It will be noted that when the parts are in the position shown in Figs. 5 and 7 a rotation of the shaft to the left to swing the hooks to a vertical position, will not actuate the wedge blocks because of the fact that the extended side portions of the thickened upper ends 18 thereof bear upon the edges of the plates 8 so as to prevent a movement of said blocks until the hooks shall have reached a vertical position, at which time, the beveled faces of the blocks will register with the inclined shoulders of the plates and will allow said blocks to be drawn downwardly to carry the hooks laterally toward the 'coaming and crowd the batten strip against the depending margin of the canvas, as before explained.

In instances Where the hatches are very long, it may be advisable to divide the shaft extending longitudinally thereof into twosections in which case the two sections of the shaft would be operated from opposite ends of the hatch and might be operated simultaneously or independently as desired. The

shafts crossing the ends of the hatch will be operated in like manner but will be continuous because of their shorter length.

It will now be understood that with an operator at each end of the hatch, itmay be quickly closed and securely fastened. The rapidity with which the hooks may be turned into place and secured will enable two men' reverse direction will release the hooks and swing thenr outwardly 'to free the hatch cover.

Having thus fully set forth my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a hatch fastenin device the combination with a lurality of movable clamping hooks adapted to engage the hatch cover, means for simultaneously actuating said hooks to carry them into engagement with the cover, and means for simultaneously locking saidhooks against outward or backward movement.

2. In a hatch fastener the combination. of a plurality of clamping hooks movable into engagement with the hatch cover, means for simultaneously actuating said hooks to cause them to engage the cover of the hatch, and means cooperating with the hook-actuatin means for forcing the hooks laterally towar the coaming of the hatch and for locking said hooks in the clamping position.

3. In a hatch fastener, the combination with the coaming and cover of the hatch, of a plurality of hooks movable into engagement with the hatch cover, a batten strip mounted on and common to a plurality of said hooks, means for actuating the hooks to carry them into engagement with the cover of the hatch, and means cooperating with the hook-actuating means for forcing the batten strip against the face of the coaming.

4. In a hatch fastener, the combination with the coaming and the cover therefor, of a plurality of hooks movable into engagement with the cover, a rock shaft common to a plurality of said hooks, means connecting said hooks with saidshaft to enable the actuation of the hooks as the shaft is rotated to carry the hooks simultaneously into engagement with the hatch cover and laterally against the coaming of the hatch, and to swing them outwardly therefrom.

5. In a hatch fastener, the combination with the coaming and hatch cover, of a plurality of clamping hooks movable 1nto engagement with said cover, a rock shaft common to all of said hooks, means connecting said shaft with said hooks to carry them simultaneously into contact with the hatch cover and swing them outwardly therefrom as the shaft is actuated, said hooks having a movement transversely of 'the shaft, and means associated with the shaft for moving the hooks transversely as the shaft is rotated. 6. In a hatch fastener, the combination with the coaming and hatch cover, of a clamping hook movable into engagement with said cover, a pinion for actuating said hook, a movable Wedge engaging said pinion, said wedge .being movable by the pinion to swing the hook in the arc of a'circle andto carry the base of the hook laterally against the coamin 7. In a iatch fastener, the combination with the coaming and hatch cover lying thereon, of a clamping hook movable into engagement with said cover, said hook having an opening through its shank, a pinion within said opening, a movable hook-actuating and locking member also within the opening in said hook engaging said pinion and the wall of said openmg, and means for rotating the pinion to move said member and actuate said hook.

8. In a hatch fastener, the combination with the coaming and hatch cover, of a clampin hook movable into engagement with sai cover carrying a batten strip thereon, a pinion for actuating said hook, a movable wedge engaging said pinion, said wedge being movable by the pinion to swing the hook in the arc of a circle and to carry the batten strip of the hook laterally against the coaming.

9. In a hatch fastener, the combination with the coaming and hatch cover, of a clamping hook movable into engagement with said cover, a rotary member for actuating said hook, means connecting said rotary member with the clamping hook to carry said hook into contact with the hatch cover and swing it outwardly therefrom as said member is actuated, said hook having a movement transversely of said rotary member, and means associated with said member for moving the hook transversely as said member is rotated.

In testimony whereof, I sign this specification in the presence of two witnesses.

ORTEN PETERSON PECKIIAM.

Witnesses:

- F. X. BURKE,

WILLIAM OSBORN. 

